Video Processing Device for Horizontally Long Displays
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Solution Overview
Problem
When input videos with a general aspect ratio are displayed on extremely horizontally long displays, they become uncomfortable to view due to excessive horizontal length or result in large black belts on the sides if not expanded, leading to inefficient use of the display area.
Innovation Solution
A video processing device that includes a video processing unit with a compression/expansion control unit and an image composing unit, which divides the input video into areas, compresses or expands them, and aligns them horizontally to fill the display area, eliminating black belts and enhancing viewability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the input video is compressed and/or expanded to match the extremely horizontally long display aspect ratio, then the video fills the entire display area, but the video becomes extremely horizontally long and uncomfortable to view
Solution Approach 1:
The input video is divided into multiple segments (first area and second area) which are processed separately. Each segment is compressed or expanded independently to achieve the target aspect ratio, allowing the video to fill the display without becoming excessively stretched while maintaining viewability through strategic segmentation and recombination
2Ease of operation
If the input video is displayed at the center of the display without expanding, then the video maintains its original aspect ratio and is comfortable to view, but large black belt portions appear on the left and right sides, making the horizontally long display ineffective
Solution Approach 1:
The video processing transitions from a single-dimensional centering approach to a two-dimensional area utilization approach by dividing the video into multiple segments that can be independently scaled. This allows the video content to expand across the horizontal dimension of the display while maintaining appropriate aspect ratios through vertical segmentation, effectively utilizing the entire display area without excessive stretching
Data Source
AI summary
Provided is a video processing device capable of displaying an easily viewable video utilizing a broader area in a display. A video processing unit that is included in the video processing device and processes an input video includes a first memory that stores the input video, a second memory that stores the input video, a compression/expansion control unit that compresses and/or expands a first area of the input video stored in the first memory and compresses and/or expands a second area of the input video stored in the second memory, and an image composing unit that generates an output video in which a video of the first area compressed and/or expanded by the compression/expansion control unit and a video of the second area compressed and/or expanded by the compression/expansion control unit are horizontally aligned.